<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
  <link href="https://cdn.jsdelivr.net/npm/animate.css@3.5.1" rel="stylesheet" type="text/css">
</head>

<body>
  <!-- 利用第三方animate.css自定义组件动画 
  enter-class
  enter-active-class
  enter-to-class (2.1.8+)
  leave-class
  leave-active-class
  leave-to-class (2.1.8+)
  -->
  <div id="app">
    <button @click="show=!show">按钮</button>
    <transition enter-active-class="animated tada" leave-active-class="animated bounceOutRight">
      <p v-if="show">hello vue</p>
    </transition>
  </div>
  <script>
    var app = new Vue({
      el: '#app',
      data: {
        show: true
      }
    })
  </script>
</body>

</html>